You can. It may not do as much good as you're expecting, and you could have a time trying to fit the second one in.
That is for the air can flow through the radiator and cool the engine coolant down.
Either a faulty engine temperature sensor or the wiring to it.
You don't. Wait for the engine to cool down to avoid getting burned before you open radiator cap.
When the engine heats up to a certain temperature, the thermostat opens up and lets the coolant flow through the engine. Heat from the engine is absorbed by the coolant, which then cycles back to the radiator. Heat from the coolant is exchanged to the air which flows through the radiator fins, thus causing the coolant to rapidly cool down.
When your car is at idle there is no air flow to cool the radiator, but when your car moves the air flow through the radiator cools it down. I would suspect the radiator fan is not coming on when it should. If the fan is working properly the engine temperature should stay fairly constant assuming the thermostat is also working properly.
The best way to cool down an overheated car engine is to park the vehicle. Allowing the engine to cool down naturally avoids all potential hazards and it is also safer for the engine. If you must start the cooling process immediately, pour cool water over the radiator and upper and lower hoses.
usually after the car has had a chance to cool down, the hose should be "spongey" when it is grasped, but after attaining operating temperature, the hose should become firm as the cooling system presurizes up. it will remain so, again, until the engine/cooling system cools down. Dont ever open the radiator cap when the engine has been run to operating temperature or not had a chance to cool down adequately, the pressurized system is very hot and you risk serious injury!!!
A car's radiator is used to help keep the engine cool. During operation, an engine's moving parts create friction, which produces heat. Coolant flows through the engine picking up that head and travels back to the radiator where it is cooled down by air flowing through the radiator coils. The cool coolant then travels back through the engine completing the cycle over and over.
nothing wrong, it just stays on to help cool the radiator down.
Short answer: The engine is working harder to keep the inside of the car cool, so it heats up.Detailed answer: The temperature of the engine rises due to the extra work. The opposite is true too. If you need to cool down the engine temperature on a hot day, open your windows and turn on the heater to maximum. This will dissipate more of the heat being produced in the engine, especially if you are stuck in slow traffic, where the radiator is not getting sufficient airflow because of the low fan speed when you are idling. If fact running the engine up above idle will help the engine temperature go down in this case.
It depends on the style cap you have but, in all cases wait for the engine to cool down (cool to the touch) then push down and turn counterclockwise at the same time. Some caps do not require you to push down.
Top up the radiator then run the engine until warmed up to normal operating temperature; shut it off and let it cool down half an hour.Top off the radiator again. You are done.